From: aaro.koskinen@nokia.com (Aaro Koskinen)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/2] ARM: Pass IFSR register to do_PrefetchAbort()
Date: Fri, 18 Sep 2009 17:52:51 +0300 [thread overview]
Message-ID: <4AB39EC3.4050202@nokia.com> (raw)
In-Reply-To: <cc557aab0909180445o33b6792ewf62a4f5e7589547@mail.gmail.com>
Hello,
Kirill A. Shutemov wrote:
>> #ifdef CONFIG_CPU_PABRT_NOIFAR
>> -# ifdef CPU_PABORT_HANDLER
>> +# ifdef CPU_PABORT_HANDLER_IFAR
>> # define MULTI_PABORT 1
>> # else
>> -# define CPU_PABORT_HANDLER(reg, insn) mov reg, insn
>> +# define CPU_PABORT_HANDLER_IFAR(reg, insn) mov reg, insn
>> +# define CPU_PABORT_HANDLER_IFSR(reg) mrc p15, 0, reg, cr5, cr0, 1
>
> It's incorrect. We have IFSR only on ARMv7.
It seems my assumption on the availability of that register was wrong,
but I think it's available at least on ARMv6, and also that IFAR can be
optional...
A.
WARNING: multiple messages have this Message-ID (diff)
From: Aaro Koskinen <aaro.koskinen@nokia.com>
To: "ext Kirill A. Shutemov" <kirill@shutemov.name>
Cc: Aaro Koskinen <aakoskin@nokia.com>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
Russell King <linux@arm.linux.org.uk>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Bityutskiy Artem (Nokia-D/Helsinki)"
<Artem.Bityutskiy@nokia.com>
Subject: Re: [PATCH 1/2] ARM: Pass IFSR register to do_PrefetchAbort()
Date: Fri, 18 Sep 2009 17:52:51 +0300 [thread overview]
Message-ID: <4AB39EC3.4050202@nokia.com> (raw)
In-Reply-To: <cc557aab0909180445o33b6792ewf62a4f5e7589547@mail.gmail.com>
Hello,
Kirill A. Shutemov wrote:
>> #ifdef CONFIG_CPU_PABRT_NOIFAR
>> -# ifdef CPU_PABORT_HANDLER
>> +# ifdef CPU_PABORT_HANDLER_IFAR
>> # define MULTI_PABORT 1
>> # else
>> -# define CPU_PABORT_HANDLER(reg, insn) mov reg, insn
>> +# define CPU_PABORT_HANDLER_IFAR(reg, insn) mov reg, insn
>> +# define CPU_PABORT_HANDLER_IFSR(reg) mrc p15, 0, reg, cr5, cr0, 1
>
> It's incorrect. We have IFSR only on ARMv7.
It seems my assumption on the availability of that register was wrong,
but I think it's available at least on ARMv6, and also that IFAR can be
optional...
A.
next prev parent reply other threads:[~2009-09-18 14:52 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-18 13:48 [PATCH 1/2] ARM: Pass IFSR register to do_PrefetchAbort() Kirill A. Shutemov
2009-09-18 13:48 ` Kirill A. Shutemov
2009-09-18 11:18 ` Aaro Koskinen
2009-09-18 11:18 ` Aaro Koskinen
2009-09-18 11:36 ` Kirill A. Shutemov
2009-09-18 11:36 ` Kirill A. Shutemov
2009-09-18 11:28 ` Aaro Koskinen
2009-09-18 11:45 ` Kirill A. Shutemov
2009-09-18 11:45 ` Kirill A. Shutemov
2009-09-18 14:52 ` Aaro Koskinen [this message]
2009-09-18 14:52 ` Aaro Koskinen
2009-09-18 15:08 ` Kirill A. Shutemov
2009-09-18 15:08 ` Kirill A. Shutemov
2009-09-18 15:38 ` Catalin Marinas
2009-09-18 15:38 ` Catalin Marinas
2009-09-18 13:48 ` [PATCH 2/2] ARM: Proper prefetch abort handling Kirill A. Shutemov
2009-09-18 13:48 ` Kirill A. Shutemov
-- strict thread matches above, loose matches on Subject: below --
2009-09-18 20:55 [PATCH 1/2] ARM: Pass IFSR register to do_PrefetchAbort() Kirill A. Shutemov
2009-09-18 20:55 ` Kirill A. Shutemov
2009-09-19 11:03 ` Russell King - ARM Linux
2009-09-19 11:03 ` Russell King - ARM Linux
2009-09-20 8:15 ` Russell King - ARM Linux
2009-09-20 8:15 ` Russell King - ARM Linux
2009-09-20 9:35 ` Kirill A. Shutemov
2009-09-20 9:35 ` Kirill A. Shutemov
2009-09-20 12:24 ` Russell King - ARM Linux
2009-09-20 12:24 ` Russell King - ARM Linux
2009-09-20 14:34 ` Kirill A. Shutemov
2009-09-20 14:34 ` Kirill A. Shutemov
2009-09-21 7:06 ` Kirill A. Shutemov
2009-09-21 7:06 ` Kirill A. Shutemov
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